Alex Rodriguez and Derek Jeter weren't just great young shortstops at the same time-- they were best friends. But that friendship got complicated when Rodriguez played better, Jeter won a lot more, and then A-Rod got the biggest contract in MLB history and used the occasion to kinda disparage his buddy's skills. Things were awkward for a few years ... and then they became teammates on the Yankees. This is a long, delicate beef that may still be unfolding.